Confirmation

To confirm that your Mac has Security Update 2017-001:
1. Open the Terminal app, which is in the Utilities folder of your Applications folder.
2. Type what /usr/libexec/opendirectoryd and press Return. 3. If Security Update 2017-001 was installed successfully, you will see one of these project version numbers: opendirectoryd-483.1.5 on macOS High Sierra 10.13 opendirectoryd-483.20.7 on macOS High Sierra 10.13.1